Results 1 to 10 of about 388,596 (155)
Case Studies in Construction Materials, 2022 When iron ore tailings (IOTs) are used as supplementary cementitious materials, their strength activity index is an important factor affecting the mechanical properties of IOTs-cement composites. In this study, four ensemble machine learning (ML) models,
Zhuxin Cheng +2 more
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Case Studies in Construction MaterialsUtilizing activated sludge as a partial substitute for cement can both curb cement consumption and address sludge reuse in an economically and environmentally-friendly manner.
Youzhi Yang +5 more
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Characterisation and Strength Activity Index of Eco-Processed Pozzolan
International Islamic University Malaysia Engineering JournalEco-processed pozzolan (EPP) is a newly emerging pozzolanic material produced from the extraction, refinement, and calcination of spent bleaching earth.
Abraham Henry Bernard +1 more
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Effect of Strength Activity Index of Fly Ash on Concrete Performance
Renmin Zhujiang, 2022 To ascertain the influence laws of the strength activity index of fly ash on concrete performance,we compound fly ash with different strength activity indexes for concrete performance tests and compare the influence of fly ash on mechanical properties ...
YIN Shaoqing +3 more
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Prediction of strength activity index using chemical and physical properties of pozzolans
CementReductions in cement use have essential benefits in reducing the embodied energy in concrete and CO2 emissions. Hence, effective assessment of potential pozzolanic materials is highly desirable to facilitate usage as sustainable supplementary ...
Farzaneh Elyasigorji, Habib Tabatabai
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Journal of Clinical Medicine, 2022 Background: Impaired functional status is a risk factor for hospitalization in patients with community-acquired pneumonia (CAP). The aim was to determine the influence of functional status and physical activity level on severe outcomes, including length of stay, admission to the intensive care unit (ICU), readmission, and mortality in patients with CAP.
Camilla Koch Ryrsø +2 more
exaly +4 more sources
Tehnicki Vjesnik, 2018 The pozzolanic activity of five different types of ash was studied using various direct and indirect methods. In addition to strength activity index (SAI) determination and the Frattini test, ash pozzolanicity was assessed via differential thermal and thermogravimetric analyses (DTA/TG) after curing for 7, 28 and 90 days.
Dolenec, Sabina, Ducman, Vilma
exaly +7 more sources
Evaluation of the Performance of Steel Slag and Waste Glass as a Cement Replacement [PDF]
Engineering and Technology Journal, 2023 The industrial development and growth in population activity caused an annual increase in solid wastes over the past decades. The emissions of CO2 from the cement industry are the main source of air pollution.
Ahmed Azeez, Maan Hassan, Alaa Atiyah
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Journal of Sustainable Construction Materials and Technologies, 2023 Red mud (RM), a by-product of aluminum production, poses environmental concerns with its disposal. This study explored calcining RM at 600 °C for 0–6 hours to utilize it as a cement substitute.
Sonali Sri Durga Chereddy +1 more
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Jurnal Ilmiah SINERGI, 2023 This work investigated the performance of class C fly ash-cement- based geopolymer paste with different mixing procedures and under steam curing. The geopolymer paste containing class C fly ash was mixed with cement up to 20% at 10% increments.
Romy Suryaningrat Edwin +3 more
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